Ziggy1949

Hello,
Have a new '19 Tahoe LS, just turned over 600 miles. Test-pulling my small RV today, only about 3200 pounds GVW, checked the manual.


Manual says to limit top speed to FIFTY MILES PER HOUR for the first 500 miles!!!!


Seems excessively on the cautious side to me??? And, on that run, I'll be hauling in February 550 miles, departing The Frozen North in no doubt sub-zero temps.


Fact is, there is not enough daylight to travel 550 miles at 50 mph that time of year, and driving at night is not a good thing for me anymore.


I normally haul the trailer at 62-65 mph.


I really don't want to haul the trailer around for nothing except to meet the miles requirement between now and February.


Thoughts on this?? I don't want to void the warranty, and the Tahoe has a black box, no doubt would flag this.

tech2

I do what they recommend.
what is a black box? Is this an aftermarket device? I worked for gm 5 years ago and at that time we had no way of recalling your driving conditions for 500miles. Today at fca we install data recorders to help in repairing intermittent problems. this device can only store 2minutes of data. it would need a big memory to store 6 hours of driving.

Ziggy1949

It has an Event Recorder but looks like it only records 30 seconds and only if something out of the ordinary is ocurring.

BUT.. I received an email shortly after taking delivery that said I was accelerating and braking hard, and I might be more gentle for better mileage and wear.... So.. figured the source was the event recorder... Maybe it's from OnStar???

From the Manual:
Event Data Recorders
This vehicle is equipped with an
event data recorder (EDR). The
main purpose of an EDR is to
record, in certain crash or near
crash-like situations, such as an air
bag deployment or hitting a road
obstacle, data that will assist in
understanding how a vehicle’s
systems performed. The EDR is
designed to record data related to
vehicle dynamics and safety
systems for a short period of time,
typically 30 seconds or less. The
EDR in this vehicle is designed to
record such data as:
. How various systems in your
vehicle were operating;
. Whether or not the driver and
passenger safety belts were
buckled/fastened;
. How far (if at all) the driver was
depressing the accelerator and/
or brake pedal; and,
. How fast the vehicle was
traveling.
434 Customer Information
These data can help provide a
better understanding of the
circumstances in which crashes and
injuries occur.
Note
EDR data are recorded by your
vehicle only if a non-trivial crash
situation occurs; no data are
recorded by the EDR under normal
driving conditions and no personal
data (e.g., name, gender, age, and
crash location) are recorded.
However, other parties, such as law
enforcement, could combine the
EDR data with the type of
personally identifying data routinely
acquired during a crash
investigation.
To read data recorded by an EDR,
special equipment is required, and
access to the vehicle or the EDR is
needed. In addition to the vehicle
manufacturer, other parties, such as
law enforcement, that have the
special equipment, can read the
information if they have access to
the vehicle or the EDR.
GM will not access these data or
share it with others except: with the
consent of the vehicle owner or,
if the vehicle is leased, with the
consent of the lessee; in response
to an official request by police or
similar government office; as part of
GM's defense of litigation through
the discovery process; or, as
required by law. Data that GM
collects or receives may also be
used for GM research needs or may
be made available to others for
research purposes, where a need is
shown and the data is not tied to a
specific vehicle or vehicle owner.

mountainmanjoe

That was most likely Onstar.

You said you already passed the 500 mi threshold, so what's the issue?

Ziggy1949

Towing section in manual doesn't reference the 1st 500 miles of vehicle operation, it says the 1st 500 miles of TOWING...

I found that odd too, I'll have close to 3000 miles on the 'Hoe by then, so I think I'll keep it below 60 for a while... Trailer is only 3200 pounds, vehicle is rated 8400...

mountainmanjoe

I didn't see a towing section in the manual. Just this:




It does not say "first 500 miles of towing". It says 500 miles (period). This is typical for all vehicles.
It also says "DO NOT TOW DURING THE BREAK-IN".

Ziggy1949

From my manual: (.pdf version downloaded from mychevrolet ), Page 278
When towing a trailer:
. Become familiar with and follow
all state and local laws that
apply to trailer towing. These
requirements vary from state to
state.
. State laws may require the use
of extended side view mirrors.
Even if not required, you should
install extended side view
mirrors if your visibility is limited
or restricted while towing.
. Do not tow a trailer during the
first 800 km (500 mi) of vehicle
use to prevent damage to the
engine, axle, or other parts.
. During the first 800 km (500 mi)
of trailer towing, do not drive
over 80 km/h (50 mph) and do
not make starts at full throttle.
. Vehicles can tow in D (Drive).
Tow/Haul Mode is recommended
for heavier trailers. See Tow/
Haul Mode 0 238. If the
transmission downshifts too
often, a lower gear may be
selected using Manual Mode.
See Manual Mode 0 236.